Report: Pro-Clinton Group Behind Russian Dossier on Trump
The Senate Judiciary Committee is considering subpoenaing the research firm Fusion GPS as the firm remains silent about the possibility of funding of the dossier.
The firm has a long history of investigating Republicans at the behest of Democrats. Fusion GPS was hired by Democrats to find damaging information on Trump as well as Mitt Romney in 2012.
Planned Parenthood has also used the firm to attack pro-life activists.
The Senate wants to see any communications between Fusion GPS and former Attorney General Loretta Lynch, who is under investigation for her involvement in Hillary Clinton's email probe.
Congress, FBI and CIA both cited the dossier when referring to the Russia investigation.
One of the firm's founders also donated at least $1000 to the Clinton campaign in 2016.
The dossier is "riddled with errors in fact and questionable sourcing," Paul Sperry, who helped break the story told "Fox & Friends."
"This was a Democrat operation from top to bottom," Sperry said.